Nissan Sentra manuals

Nissan Sentra Service Manual: Ecm branch line circuit

Diagnosis Procedure

1.Check connector

  1. Turn the ignition switch off.
  2. Disconnect the battery cable from the negative terminal.
  3. Check the terminals and connectors of the ECM for damage, bend and loose connection (unit side and connector side).

Is the inspection result normal? YES >> GO TO 2.

NO >> Repair the terminal and connector.

2.Check harness for open circuit

  1. Disconnect the connector of ECM.
  2. Check the resistance between the ecm harness connector terminals.

Is the measurement value within the specification?


Is the measurement value within the specification? Yes >> go to 3.

No >> repair the ecm branch line.

3.Check power supply and ground circuit

Check the power supply and the ground circuit of the ecm. Refer to ec-164, "diagnosis procedure".

Is the inspection result normal? Yes (present error)>>replace the ecm. Refer to ec-485, "removal and installation".

Yes (past error)>>error was detected in the ecm branch line.

No >> repair the power supply and the ground circuit.

Main line between dlc and hvac circuit
Diagnosis Procedure 1.Check harness continuity (open circuit) Turn the ignition switch OFF. Disconnect the battery cable from the negative terminal. Disconnect the following harness connector ...

Abs branch line circuit
Diagnosis procedure 1.CHECK CONNECTOR Turn the ignition switch OFF. Disconnect the battery cable from the negative terminal. Check the terminals and connectors of the ABS actuator and electri ...

Other materials:

ID registration cannot be completed
Diagnosis Procedure NOTE: The Signal Tech II Tool (J-50190) can be used to perform the following functions. Refer to the Signal Tech II User Guide for additional information. Activate and display TPMS transmitter IDs Display tire pressure reported by the TPMS transmitter Read TPMS DTCs ...

Indicator lights
Continuously Variable Transmission (CVT) position indicator light (if so equipped) When the ignition switch is placed in the ON position, this indicator light shows the transmission shift lever position. See “Driving the vehicle” in the “Starting and driving” section of this manual ...

Unit disassembly and assembly
Front coil spring and strut Exploded View Piston rod lock nut Strut mount insulator Strut mount bearing Bound bumper Coil spring Lower rubber seat Strut Steering knuckle Front Disassembly and Assembly DISASSEMBLY CAUTION: Do not damage the piston rod when removing comp ...

© 2014-2020 Copyright www.nisentra.com